TM 11-5985-371-12&P
WARNING
Do not erect or tear down the antenna in winds exceeding 35 miles per
hour (30 knots).
a. At least four persons (two at each location) must be available to erect or
tear down the antenna in winds exceeding 15 miles per hour (13 knots).
b. When the antenna is installed in an area where strong winds are prevalent, get
specific instructions from your supervisor regarding the reinforcement of mast base
and stakes. Inspect the antenna at least twice daily. Make certain:
The mast is straight and vertical.
The guy stakes, mast base, antenna stakes and safety area rope stakes are
firmly imbedded in the ground.
The antenna wire and mast guys are secure and reasonably taut.
2-9. Snow and/or Ice.
WARNING
When the mast, guys and antenna wire become heavily iced, add a warn-
ing on each of the four sides of the safety area rope "BEWARE OF ICE".
a. At least four persons (two at each location) should be available to erect or
teardown the antenna if the ground is wet, frozen, or slippery.
b. When the antenna is installed in a region known for heavy snow and Icing con-
ditions, inspect the antenna frequently, making certain the antenna wire and mast
guys are secure and reasonably taut.
2-10. Extreme Cold. Extreme cold causes cables and wire to become hard and brittle
and difficult to handle. Be careful when handling the rf cables and antenna wire so
that kinks and unnecessary loops will not result in permanent damage.
2-11. Electrical Storms. Do not try to erect or teardown the antenna, raise or
lower the antenna wire, or work on the antenna during an electrical storm or when an
electrical storm is imminent.
2-30
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